Background and Objectives: This study intended to examine the relationship of subjective well-being and happiness with pregnancy anxiety among pregnant women in Tabriz.                                                                                                                                      
Material and Methods: Drawing on a correlational research design, we selected 97 pregnant women through the convenience sampling procedure. The data were gathered by means of Oxford Subjective Well-being Scale, Beck Anxiety Inventory, and Keyes & Magyarmv Mental Well-being Scale. For data analysis, SPSS 23 software and Pearson’s correlation and multiple regressions were used.                                                                  
Results: Data analysis based on Pearson r and regression analysis (p<0.05) showed that there was a negative relationship between subjective well-being and pregnancy anxiety and also between happiness and pregnancy anxiety. Findings concerning the first research hypothesis showed that the combined variables of subjective well-being and happiness can significantly predict pregnancy anxiety while subjective well-being by itself could account for 35% of variance in pregnancy anxiety. Happiness failed to contribute to the model specified.

Conclusion: Findings of the present study indicated that mental well-being and happiness are two positive and effective factors in decreasing pregnancy anxiety and therefore the study results can be of use by gynecologists and psychologists.